Brick-kiln.



No. 656,640. Patented Aug. 28, [90"].

J. M. GUNKLE.

BRICK KILN.

(Application filed Mar. 28, 1900.)

(No Model.)

THE Noam; vnnws co, PMOTOLIYMKL, WAiNINGTON, u c

[o it appertains to make and use the same.

hard bricks than attained under ordinary conare laid on their edges with their ends con- Nl'IED STATES V PATENT OFFICE.

JAMES MORGAN eUNKLE, OE DENVER, COLORADO, ASSIGNOR OF ONE- THIRD TO HARRY H. eUNKLE, OF SAME PLACE, AND JOHN H. MEANS, OF COLORADO SPRINGS, COLORADO.

BRICK- SPECIFICATION forming part of Letters Patent No. 656,640, dated August 28, 1900.

Application filed M91011 1900.

To all whom it may concern;

Be it known that I,JAMEs MORGAN GUNKLE, a citizen of the United States, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Brick-Kilns; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which My invention has relation to improvements in brick-kilns; and the purpose or object is to construct a brick-kiln with air-ducts to conduct the air to the arches at the center of the kiln or at the desired points of combustion, whereby a more even combustion and heat are produced, resulting in a saving of fuel and shortening the time required to burn the bricks and effecting a greater percentage of structions and also resulting in the complete absence of unburned sections in the kiln or of the arches being melted down, the fires being under the ready control of the workman.

I have fully and clearly illustrated the invention in the accompanying drawings,where- 1n- Figure 1 is a detail perspective view of a portion of a brick-kiln embodying my improvements. Fig. 2 is a front view'of the kiln, partly broken away. Fig. 3. is a detail horizontal section showing the air-ducts and lateral openings into the arches.

In constructing a kiln of my improved style a course of bricks a is laid flat on the sides, being disposed lengthwise and placed crosswise of the bench. This layer of bricks constitutes the foundation of the benches or piers of the arches. Then two lines of bricks b c tacting and the inner faces of the bricks about four inches apart, and then over these edgelaid lines of bricks is laid, abutting each other, a covering of bricks d, substantially as shown in the drawings, the construction making an air-duct 6. Such ducts are built in each bench and on each side of the arches and run parallel with the walls of the arches. The ducts thus formed extend outward beyond the line of the faceof the kiln a distance equal to the thickness of the brick, so as to provide a connection with the outside or cas= ing wall, through which the air-ducts open,

Serial No. 10,580. (No model.)

- whether temporary casing-walls or permanent clamp-walls are used. The joints in the three courses surrounding the air-ducts are made tight to the point where it is required or desired to deliver the airintothe arches,at which point the outside line of bricks forming the walls of the ducts is separated by spacing them, forminglateral openings from the ducts through the walls of the arches, as seen at f. These ducts enter from the outside facing or walls of the kiln and toward the middle of the kiln, where they are closed by masonry, as at g. The remainder of the kiln above the air-duct layers and between them is set with openings between the bricks in the usual manner,substantially as seen in the drawings. The outside openings of the air-ducts may be closed by inserting a half-brick therein and if required to be sealed they may be plastered with clay. The setting of .the walls of the ducts by making the bricks to lie closely together, especially the top covering, prevents the colder air from rising in the kiln until the point is reached where it is desired to'deliver it to the arches, by which time the air has become warmor hot and in prime condition to promote combustion. The attendant by allowing air to enter or shutting it off the ducts, as conditions require, has full control of the fires at all times, such as it is impossible to acquire when the bricks are set with openings between them from the ground to the top of the kiln.

Having thus described myinvention, what I claim is JAMES MORGAN GUNKLE.

Witnesses:

ERNEs'r W. ANnERsoN, HARRY H. GUNKLE. 

